I mentioned in a thread or two on here the other day that after trying XS Big Dot sights on my G19 I decided to install them on all of my Glocks. Well, I ordered three sets on Monday for my G17, G23 and G36 and they showed up on my front porch yesterday. I didn't install them last night because I was at church, so tonight I get to do the deed. Can't wait to get all of my Glocks outfitted with these sights...especially my new G23 EDC gun! By the way, big kudos to Midway USA for more great customer service. They've been great for everything I've ever ordered from them. It's hard to beat ordering on Monday and having the product on Wednesday.